package org.reggie.config;

import lombok.extern.slf4j.Slf4j;
import org.reggie.common.JacksonObjectMapper;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;


//项目启动的时候就会启动

//说明是一个配置类
@Slf4j
@Configuration
public class webmvc extends WebMvcConfigurationSupport {
    /**
     * 设置静态资源映射
     * @param registry*/
    @Override
    protected  void addResourceHandlers(ResourceHandlerRegistry registry){
        log.info("开始静态资源映射...");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }
    //扩展mvc框架的消息转换器
    /*@param converters*/



    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>>converters){
        log.info("扩展消息转换器");
        //创建消息转换器对象
        //MappingJackson2CborHttpMessageConverter messageConverter=new MappingJackson2CborHttpMessageConverter();
        MappingJackson2HttpMessageConverter messageConverter=new MappingJackson2HttpMessageConverter();
        //设置对象转化器。底层使用Jackson将java对象转成json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器容器集合中
        converters.add(0,messageConverter);
    }
}
